- CPU: custom Intel Pentium III (32 bit, 733 MHz)
- GPU: Nvidia NV2A (233 MHz)
- RAM: 64 MB DDR SDRAM
- Video encoder: Conexant, Focus, or Xcalibur
- Detailed specs
There were several revisions of the Xbox, though the changes were (mostly) minor. More information about the revisions and how to identify them can be found here.
The first version was manufactured from January 2001 to July 2002. The USB controller is on a separate PCB and there is a fan on the GPU heat sink. This revision also uses the failure-prone Thomas DVD drive. Video encoding is performed by the Conexant chip.
This version was manufactured until January 2003. The USB controller was moved to the motherboard and the GPU fan was removed. This is the last revision to use the Thomson DVD drive, but some 1.1 models use a Philips drive instead for better reliability.
The 1.2 version was manufactured until March 2003. The power connector was changed to an ATX power connector. DVD drives may be made by Philips or Samsung for this revision.
This revision was only manufactured until July 2003. The only notable change is the removal of the LFrame signal from the LPC port.
This version was produced until March 2004. The Conexant video encoder was swapped out in favor of a Focus chip.
Manufactured until August 2005, this revision again changed the video encoder, this time to an Xcalibur chip. Unfortunately, the Xcalibur chip is known to have incompatibilities with some games. Data and power lines were removed from the LPC port, a Xyclops chip was added to prevent BIOS flashing, and some versions also switched to lower-quality Hynix RAM. Some models also came with a Hitachi-LG DVD drive that has trouble reading from CD-R discs.
Best Possible Connection
Component (NTSC) / RGB (PAL)
Known issues and quirks
Info about quirks specific to the console - jail bars, blurring, and other oddities
Links to detailed mod pages with brief descriptions of what they do
Links to schematics and circuit diagrams.